Joanna Krupa (born April 23, 1979) is a Polish-born American model, actress, and television presenter. She is known internationally as the host and head judge of Polish Top Model (2010–present) and ha
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b26858ce401c8bdeda5b621b1a5420055f2ba2832161637dc3c4327481a50. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fb77d45-ec6f-4154-ad32-f542eeff9330.json and https://artists.proofprofile.net/proofs/artist/5fb77d45-ec6f-4154-ad32-f542eeff9330.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).